Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0JCM callsign genealogy
Currently held by MADISON, JAMES C
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by K0JCM's current licensee, walking backwards.
- MADISON, JAMES CMOgranted 2014-04-17cancelled 2015-10-27
Successor callsigns
Callsigns held now by people who previously held K0JCM.
No current licensee on record previously held this callsign.